Object returned from FieldInfo.GetValue cannot be cast to Array

Question

I'm working in a PCL (Profile7), and I've got an issue where the object returned from fieldInfo.GetValue(myItem) cannot be cast to an array.

I get a cast exception on a direct cast and (obviously) null when using As

how do I cast this object to a collection?

note: I have no idea what the type is as I don't have access to it. It's internal to the library I'm consuming

Answer 1

Check the type of the dynamicProperties object, it's not visible in the debugger screenshot that you showed. Most likely it's a List<> of some sort.

The cast you attempt only succeeds if it's an array of reference types (eg string[] or object[] , it will fail if the type is a struct, as illustrated in this question: object to string array

In any case, the IReadOnlyCollection<T> , IReadOnlyList<T> and IEnumerable<T> interfaces are covariant, you could try casting to IEnumerable<object> , or if you need more information such as count or indexer access, try one of the other interfaces.